package edu.sctu.practice.class02.liuli.assign.assign02;

/**
 * Created by Administrator on 2015/10/14.
 */
public class Rational {

     double add(int a,int b){
        return a+b;
    }

     double minus(int a,int b){
        return a-b;
    }
     double multiply(int a,int b){
        return a*b;
    }
    double divide(int a,int b){
        return a/b;
    }

}
